Band-brake.



No. 787,892. PATENTED APR. 25, 1905. L. S. CHADWICK.

BAND BRAKEu APPLIOATION HLED AUG. 4, 1908.

2 SHEETB-SHEET 1.

No. 787,892. PATENTED APR. 25, 1905. L. S. CHADWIGK.

BAND BRAKE.

APPLICATION E'ILED AUG. 4, 1903.

2 2 SHEETS-SHEET 2.

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UNITED STATES Patented April 25, 1905.

LEE S. CHADWIUK, OF RIDLEY PARK, PENNSYLVANlf-L BAND-'BRAKE.

SPECIFICATION forming' part of Letters Patent NO. 787,892, Clated April 25, 1905.

Application filed August 4, 1903. SeriaLNo. 168,137.

To 11,77 who/lt b 71m1/ (fon/08771,:

Be it known that l, Len S. Clunwicn, a citizen of the United States, residing; at Ridley Park, county of Delaware, and State of Pennsylvania, have invented a new and useful lmprovement in Band-Brakes, of which the followiu}l is a full, clear, and exact description, reference being had to the accompanying,` d rawing's, which form a part of this specification.

My invention has for its object certain improvements in band-brakes, which will include compensating means, so that the band-brakes on two wheels` at opposite sides of a vehicle will be set with like pressure.

My invention is particularly adapted for autoinobiles, where it is desirable that the band shall be applied with like pressure upon the brake-wheels at opposite ends of the axle and also to prevent the band-brake when loosened sagging' upon the brake-wheel or rattling.

l will lirst describe an embodiment of my invention, illustrated in the accompanying drawings, and then point out the invention in the claims.

ln the drawings, Figure l is a plan view of a portion of the running-gear. Fig. 2 is a sectional view on line 2 2 of Fig. 1. Fig. 3 is a sectional view on line 3 3 of Fig. 1.

A is the vehicle-body; B, the frame; the brake-lever.

l) is a ratchet, and (lis the brake-lever locking-pawl.

The brake-lever U is secured to the shaft E, which held in supports 8 a' so as to rock. From one end of the rocking shaft E extends the connecting'-rod G, connected to one end M, the bcll-crank L being' pivoted to the frame. The end of the brake-band /1' opposite to that connected to rod is connected to the hooked end of the bell-crank L', pivoted to the frame. The other end of the bell-crank lever L' is connected to the rod M at the end opposite to that of its connection with lever L. ly this construction if there is any tendency when the brake-lever (J is applied for the band /t to grip its brake-wheel more tightly than brakeband /1' tends to grip its brake-wheel the connection of bell-cranks L L/ and rod M will cause the pressure to be alikein both. Moreover, this result is arrived at with more certainty by placing` this compensating mechanism in connection with the end of the brakeband opposite to the connection with the rockshaft and brake-lever. The peripherics of the brake-wheels are also surrounded by a casing,` O, concentric with the rim or tire of the brake-whcel and separatcd therefrom by a space o, in which the brakc-band is placed. There are also slots P P' in this casing' for the passag'e of the brake-bands to connect with the rods and and bcll-cranksL L'. This casing' O is held lixed by means of conical frame Q, secured to the axle. lVhen the brakeband is loosened, it will lie in the space between the casing' and periphery of the wheel against the easing, which will hold it from sagging upon the wheel or rattling' or Vibrating.

Haringl now fully described my invention, what I claim, and desire to protect by Letters Patent, is-a 1. ln combination, brake-whecls, a brakeband upon each wheel, a brake-'lever and connection between said brake-lever and one end .of each Drake-band, bell-crank levers, one for each brake-band. the end of one brake-band oppositc to that connected with the brake-lever being' connected to one bell-crank and the end of the other brake-band opposite to that connected with the brake-lever being connectcd to the other bell-crank and a connectingrod connecting said bell-cranks.

2. ln combination, ln'ake-wheels, a brakeband upon each wheel, a brake-lcver, a rockshaft operated by said lever, connections between said rock-shaft and one end of each of saidbrake-bands, bell-cranklevers,onebrake- In testimony of which invention I have band at its'end opposite to its connection With hel'eunto set my hand, at Trainer, Pennsyl- IO the rock-shaft being" connected to one of said Vania, on this 28th day of July, 1903. hell-Crank levers, the other brake-ba-nd at its 5 end opposite to the connection With the rocki LEE S' (JHADWIOI shaft being connected to the other of said bell- /Vitnesses:

Crank levers and a connecting-rod connecting N. B. RINGLY,

said hell-Crank levers. GEO. B. HARVEY. 

